A Study of Dynamic Radiographic Anatomy of the Sphincteric Segment of the Common Bile Duct / 第三军医大学学报

ABSTRACT

The sphincteric segment of the common biie duct is observed with EROI on 102 normal Chinese subjects. The findings of 15 cases from the 102 are com- pared on 2 successive films to observe the dynamic changes. The average width of this part is 5.41?1.32mm, and the average length l2 ? 3.67mm. The shape of this segment can be divided into 4 typessmall tubular type, reverted calabash type, reverted conical type and suspended cavity type. The length and width of this segment are changeable in different phase of filling. Suggestion the radiologists must be familiar with the normal variations of this segment in order to improve their diagnostic accuracy of the disorders of the lower end of the common bile duct.